Mixing attachment for engine fuel intakes



Nov. 6 1923.

J. W. SHAW MIXING ATTACHMENT FOR ENGINE FUEL INTAKES Filed Feb. 2'7. 1922 Patents Nov. 6, 1923.

tease rarer-er JAMES W. SHAW, OF CHICAGO, ILLINOIS.

MIXIATG ATTACHMENT FOR ENGINE FUEL INTAKES.

Application filed February 27, 1922. Serial No. 539,444.

To all whom it may concern:

Be it known that I, JAMES W. SHAW, a citizen of the United States ofAmerica, and a resident of Chicago, in the county of Cook and State ofIllinois, have invented a certain new and useful Improvement in MixingAttachments for Engine Fuel Intakes, of which the following is aspecification.

This invention relates to that class of atomizing or breaking devicesarranged in the fuel intakes of internal combustion engines for thepurpose of attaining a more complete mixture of the fuel gas and airpassing from the carburetor to the combustion chamber of the engine.

The present improvement has for its object, to provide a structuralformation and association of parts in an atomizing or breaking member,adapted for ready application at the point of connection between theflanges of the carbureter and engine manifold, and which is adapted toeffectively intermix the passing gaseous fuel and air with a minimumimpedance or retardance of the normal flow of the same, all as willhereinafter more fully appear.

In the accompanying drawing Fig. 1, is a sectional elevationillustrating the appliance in place between the delivery neck of thecarbureter and the receiving neck of the engine intake manifold.

Fig. 2, is a detail vertical section on line 2-2, Fig 3 of theat'omizing appliance or head.

Fig. 3, is a top view of the same.

Like reference numerals indicate like parts in the different views.

Referring to the drawing, 1 designates the flanged outlet neck of acarburetor, and 52 the adjacent inlet neck of the engine intakemanifold, between which the present atomizing head or appliance isinserted in the preferred form of the invention as shown in Fig. 1.

3 designates an annular flanged base men1- ber of thin plate metaladapted to fit and be secured between the connecting flanges of thecarburetor and manifold aforesaid, and by means of the attaching boltsthereof. The base member 3 is adapted to provide marginal support for anatomizing or breaking member by which a thorough mixture of the passinggaseous fuel and air is eflected without undue impedance to the normalflow 0f the same to the combustion chambe of the engine, and in thisimprovement said atomizing member comprises a construction andarrangement of parts as follows 4 designates an outer conical spiral member, formed of a strip of obliquely corrugated metal, and 5 designatesan inner conical spiral member of like corrugated metal, arrangedconcentrically within said outer member 4 with the obliquity of thecorrugations of one member extending in a direction opposite to those ofthe other member, and with both spiral members supported and held inproper relation to each other by means of bracing strips 6 extendingfrom the annular base member 3 and from convolution to convolution ofthe pair of spiral members 4, 5, as shown.

The described construction is adapted to break and intermix the passingflow of fuel gas and air and attain a very intimate inter mixture of thesame without offering undue interference with the normal flow of thegaseous fuel supply to the engine.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is

1. A mixing device for the fuel intake of engines, comprising a pair ofcone shaped spirals of corrugated plate metal arranged centrally onewithin the other, an annular flanged base member adapted for insertionbetween the attaching flanges of an engine manifold and a carbureter,and a series of bracing strips extending from said base member to saidspirals and from convolution to convolution of the same.

2. A. mixing device for the fuel. intake of engines, comprising a pairof cone shaped spirals of corrugated plate metal arranged centrally onewithin the other, the respective corrugations of the spirals having anoblique arrangement in opposite directions, an annular flanged basemember adapted for insertion between the attaching flanges of an enginemanifold and a carbureter, and a series of bracing strips extending fromsaid base member to the spirals and from convolution to convolution ofthe same.

Signed at Chicago, Illinois, this 25th day of February, A. D. 1922.

JAMES W. SHAW.

